3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(1, 2); $b = $a; $b[0] = 222; var_dump($a); var_dump($b);

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.3.60.0130.00318.34
8.3.50.0130.00821.97
8.3.40.0060.00918.54
8.3.30.0100.01019.17
8.3.20.0030.00920.16
8.3.10.0120.00623.71
8.3.00.0040.00419.05
8.2.180.0120.00316.50
8.2.170.0040.01122.96
8.2.160.0100.00321.86
8.2.150.0030.00524.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0080.00020.88
8.2.110.0110.01121.04
8.2.100.0150.00017.59
8.2.90.0000.00817.63
8.2.80.0060.00318.84
8.2.70.0060.00317.80
8.2.60.0060.00318.09
8.2.50.0030.00618.10
8.2.40.0030.00619.17
8.2.30.0070.00019.23
8.2.20.0040.00417.73
8.2.10.0050.00318.16
8.2.00.0040.00417.73
8.1.280.0140.00325.92
8.1.270.0140.00419.04
8.1.260.0000.00726.35
8.1.250.0040.01128.09
8.1.240.0000.00921.02
8.1.230.0000.01220.73
8.1.220.0000.00817.74
8.1.210.0030.00618.77
8.1.200.0090.00317.36
8.1.190.0060.00317.22
8.1.180.0040.00418.97
8.1.170.0000.00818.56
8.1.160.0000.00719.05
8.1.150.0030.00518.83
8.1.140.0040.00417.30
8.1.130.0030.00317.82
8.1.120.0000.00717.36
8.1.110.0040.00417.28
8.1.100.0070.00017.39
8.1.90.0040.00417.28
8.1.80.0000.00717.41
8.1.70.0030.00317.43
8.1.60.0000.00917.56
8.1.50.0050.00217.41
8.1.40.0000.00817.34
8.1.30.0040.00417.64
8.1.20.0080.00017.57
8.1.10.0000.00717.54
8.1.00.0070.00317.43
8.0.300.0070.00018.77
8.0.290.0030.00616.75
8.0.280.0070.00018.32
8.0.270.0070.00017.09
8.0.260.0060.00017.17
8.0.250.0030.00316.89
8.0.240.0030.00316.78
8.0.230.0020.00516.92
8.0.220.0070.00016.67
8.0.210.0040.00416.71
8.0.200.0000.00616.90
8.0.190.0000.00716.95
8.0.180.0060.00316.83
8.0.170.0040.00416.81
8.0.160.0000.00716.89
8.0.150.0000.00716.76
8.0.140.0040.00416.68
8.0.130.0030.00313.27
8.0.120.0000.00816.68
8.0.110.0050.00216.75
8.0.100.0050.00316.89
8.0.90.0070.00016.62
8.0.80.0100.00716.77
8.0.70.0040.00416.93
8.0.60.0000.00716.81
8.0.50.0000.00716.86
8.0.30.0100.01217.21
8.0.20.0110.00717.40
8.0.10.0040.00416.73
8.0.00.0080.01016.74
7.4.330.0050.00015.03
7.4.320.0000.00616.54
7.4.300.0030.00316.36
7.4.290.0030.00316.38
7.4.280.0050.00216.43
7.4.270.0000.00716.43
7.4.260.0050.00216.41
7.4.250.0080.00016.48
7.4.240.0020.00516.54
7.4.230.0000.00716.61
7.4.220.0190.00016.55
7.4.210.0030.01116.30
7.4.200.0030.00316.51
7.4.160.0110.00516.41
7.4.150.0060.01217.40
7.4.140.0050.01217.86
7.4.130.0100.00816.47
7.4.120.0070.01116.51
7.4.110.0150.00316.54
7.4.100.0120.00916.29
7.4.90.0080.01316.42
7.4.80.0120.00919.39
7.4.70.0110.01116.36
7.4.60.0000.01716.57
7.4.50.0040.00416.50
7.4.40.0090.00616.37
7.4.30.0030.01316.39
7.4.00.0050.00815.11
7.3.330.0020.00213.13
7.3.320.0030.00313.04
7.3.310.0070.00016.07
7.3.300.0040.00416.24
7.3.290.0090.00716.16
7.3.280.0080.01116.21
7.3.270.0060.01317.40
7.3.260.0110.00716.22
7.3.250.0100.01116.19
7.3.240.0130.00316.23
7.3.230.0110.00616.39
7.3.210.0150.00316.23
7.3.200.0120.00919.39
7.3.190.0120.00616.23
7.3.180.0070.01016.17
7.3.170.0060.01116.35
7.3.160.0040.01116.18
7.3.120.0040.01114.70
7.3.110.0120.00314.79
7.3.100.0030.00914.60
7.3.90.0000.01414.71
7.3.80.0030.00714.66
7.3.70.0100.00615.03
7.3.60.0080.00314.55
7.3.50.0100.00314.68
7.3.40.0030.00614.85
7.3.30.0100.00614.48
7.3.20.0060.00616.55
7.3.10.0090.00616.68
7.3.00.0060.01016.27
7.2.330.0070.01016.20
7.2.320.0060.01216.61
7.2.310.0130.00716.54
7.2.300.0120.00616.33
7.2.290.0130.00316.38
7.2.250.0030.01515.11
7.2.240.0110.00814.88
7.2.230.0030.01614.91
7.2.220.0040.01414.89
7.2.210.0080.00814.81
7.2.200.0000.00915.09
7.2.190.0150.00314.86
7.2.180.0100.00714.99
7.2.170.0100.00014.91
7.2.00.0030.01319.30
7.1.330.0040.01115.68
7.1.320.0040.01115.36
7.1.310.0080.01215.71
7.1.300.0070.00715.79
7.1.290.0000.01215.52
7.1.280.0090.00615.81
7.1.270.0030.01015.82
7.1.260.0050.00515.72
7.1.100.0040.00718.09
7.1.70.0110.00516.95
7.1.60.0130.01319.22
7.1.50.0140.01434.78
7.1.00.0030.07722.37
7.0.200.0040.00416.73
7.0.140.0000.06321.95
7.0.60.0030.07720.01
7.0.50.0070.09017.92
7.0.40.0030.07719.97
7.0.30.0300.06720.04
7.0.20.0400.05020.12
7.0.10.0100.07720.20
7.0.00.0030.08720.09
5.6.210.0100.07320.50
5.6.200.0070.04018.22
5.6.190.0070.07320.27
5.6.180.0300.08020.32
5.6.170.0330.07720.46
5.6.160.0100.08720.49
5.6.150.0030.08718.17
5.6.140.0070.07718.18
5.6.130.0000.05718.18
5.6.120.0100.06321.14
5.6.110.0000.04320.89
5.6.100.0030.07320.97
5.6.90.0130.06321.09
5.6.80.0030.06720.46
5.5.350.0270.07720.42
5.5.340.0000.08318.02
5.5.330.0000.04720.23
5.5.320.0500.06320.29
5.5.310.0370.07320.21
5.5.300.0070.03317.98
5.5.290.0070.07717.97
5.5.280.0030.04720.86
5.5.270.0100.08020.75
5.5.260.0070.08320.66
5.5.250.0030.06720.61
5.5.240.0000.08320.36
5.4.450.0670.05719.58
5.4.440.0600.04719.46
5.4.430.0430.05319.46
5.4.420.0070.05319.39
5.4.410.0730.04719.30
5.4.400.0730.05319.14
5.4.390.0270.06318.62
5.4.380.0230.05718.74
5.4.370.0170.06018.71
5.4.360.0470.05018.53
5.4.350.0200.05718.73
5.4.340.0370.06018.77
5.4.320.0400.04018.43
5.4.310.0100.06018.48
5.4.300.0100.06318.69
5.4.290.0130.05718.74
5.4.280.0270.04318.64
5.4.270.0200.05718.55
5.4.260.0230.05018.42
5.4.250.0130.06018.62
5.4.240.0100.07018.49
5.4.230.0270.04718.68
5.4.220.0200.06318.70
5.4.210.0130.06018.73
5.4.200.0170.05016.59
5.4.190.0200.05318.70
5.4.180.0270.04018.65
5.4.170.0100.06018.63
5.4.160.0300.04018.46
5.4.150.0270.04318.55
5.4.140.0130.05716.20
5.4.130.0200.07016.29
5.4.120.0300.04016.24
5.4.110.0200.05016.22
5.4.100.0200.05016.25
5.4.90.0270.04316.06
5.4.80.0200.05016.17
5.4.70.0130.05716.13
5.4.60.0200.05016.06
5.4.50.0100.05716.15
5.4.40.0170.05316.02
5.4.30.0170.05016.32
5.4.20.0130.05316.31
5.4.10.0130.05316.14
5.4.00.0200.04715.61
5.3.290.0100.06314.63
5.3.280.0200.05014.64
5.3.270.0230.05014.59
5.3.260.0230.05014.55
5.3.250.0100.06014.57
5.3.240.0200.05014.52
5.3.230.0130.06014.68
5.3.220.0200.05014.59
5.3.210.0170.06014.63
5.3.200.0300.04014.54
5.3.190.0270.05714.56
5.3.180.0170.05014.65
5.3.170.0230.04314.53
5.3.160.0100.05714.54
5.3.150.0170.05314.55
5.3.140.0170.05014.48
5.3.130.0170.05314.53
5.3.120.0100.06014.59
5.3.110.0230.04714.57
5.3.100.0100.05713.95
5.3.90.0170.05014.00
5.3.80.0230.04313.95
5.3.70.0270.05313.98
5.3.60.0200.04313.91
5.3.50.0130.05313.85
5.3.40.0130.05313.91
5.3.30.0270.04013.86
5.3.20.0200.04713.59
5.3.10.0200.04313.64
5.3.00.0100.05713.62
5.2.170.0230.03311.10
5.2.160.0100.04311.11
5.2.150.0200.03711.06
5.2.140.0130.04311.07
5.2.130.0070.04711.14
5.2.120.0030.05011.07
5.2.110.0130.04011.03
5.2.100.0170.03711.09
5.2.90.0230.03011.09
5.2.80.0070.05311.01
5.2.70.0130.04311.15
5.2.60.0130.04311.09
5.2.50.0130.04710.94
5.2.40.0130.03710.96
5.2.30.0170.04011.02
5.2.20.0070.04710.91
5.2.10.0200.04710.86
5.2.00.0200.05010.82
5.1.60.0130.0339.95
5.1.50.0130.03710.00
5.1.40.0100.0379.94
5.1.30.0130.03710.42
5.1.20.0030.04710.46
5.1.10.0100.04010.15
5.1.00.0130.03310.04
5.0.50.0130.0238.56
5.0.40.0030.0308.42
5.0.30.0130.0408.25
5.0.20.0070.0278.19
5.0.10.0030.0308.14
5.0.00.0130.0378.19
4.4.90.0070.0205.91
4.4.80.0000.0275.86
4.4.70.0000.0275.81
4.4.60.0030.0235.85
4.4.50.0030.0235.89
4.4.40.0070.0375.91
4.4.30.0030.0235.85
4.4.20.0030.0235.94
4.4.10.0030.0235.97
4.4.00.0070.0335.91
4.3.110.0030.0235.82
4.3.100.0070.0205.75
4.3.90.0030.0235.82
4.3.80.0030.0375.81
4.3.70.0130.0135.80
4.3.60.0130.0135.81
4.3.50.0100.0205.78
4.3.40.0030.0375.73
4.3.30.0030.0234.54
4.3.20.0000.0274.57
4.3.10.0030.0204.48
4.3.00.0130.0277.30

preferences:
51.98 ms | 401 KiB | 5 Q